package section_13;

import java.util.Iterator;

/**
 * @Author ZhangGJ
 * @Date 2019/05/30
 */
public class IterableClass implements Iterable<String> {
    protected String[] words =
        ("And that is how we know the Earth to be banana-shaped.").split(" ");

    public Iterator<String> iterator() {
        return new Iterator<String>() {
            private int index = 0;

            public boolean hasNext() {
                return index < words.length;
            }

            public String next() {
                return words[index++];
            }

            public void remove() { // Not implemented
                throw new UnsupportedOperationException();
            }
        };
    }

    public static void main(String[] args) {
        for (String s : new IterableClass())
            System.out.print(s + " ");
    }
}
